#include "mystdio.h"
#include "mymath.h"
#include <string.h>
#include <unistd.h>
#include <stdio.h>

int main()
{
	MyFile* fp = mfopen("log.txt", "a");

	const char* str = "hello world";
	int cnt = 20;
	while (cnt--)
	{
		mfwrite(str, strlen(str), fp);
	}

	mfclose(fp);
	printf("10+20=%d\n",30);
	return 0;
}
